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TAM

The Aim of the Lab

The aim of the Trisonic Research Laboratory (TRL) is to provide graduates with a thorough scientific and technical training to cover the needs not only of the aeronautical industry but also aerospace research.

The mission of the Lab

Making scientific and applied researches providing knowledge generation in national and international levels, publishing and using of them.

Research Application Fields

In addition to being a teaching centre where, besides the lectures, students receive practical training in the laboratory.  The TRL carries out considerable research in the fields of both basic and applied science.
The TRL is at present, engaged in research work of special interest in the fields of applied mechanics, experimental fluid mechanics, industrial aerodynamics, analysis and design of aerospace propulsion systems, dynamics of combustion processes.  

Facilities

There are 4 subsonic and 2 supersonic wind tunnels and  a water channel in the Aerodynamic Laboratories. For measuring the velocity and turbulence, LDA, PIV, Constant Temperature Hot-wire Anemometry and Pressure measuring probes are used. For force measurements a 6 component external balance system and a 3 component internal balance system are used. There are pressure sensors and accelormeters in various size and intervals. Moreover, there are many experimental setups for educational studies: air flow tables, smoke tunnel, laminar flow table, jet flow facilities, surface oil film and tuft flow visualization techniques.

 

Research Staff

At the present time, there are 5 lecturers, 3 Research Assistant, 2 Project Assistant, and 3 Technician.

Performable Experiments

Experimental Researches in the fields of Fluid dynamics, Gas dynamics, Aerodynamics and Aerothermodynamics in Low Subsonic and Trisonic wind tunnels. Helicopter aerodynamics, Shock waves – Boundary layer interaction, CFD validation, External load certification, Aerodynamic characteristics of axisymmetric objects subjected to high velocities, Vibrations induced by flow, Subsonic and Supersonic jet flows, vortex separation problems., Aerodynamic analysis of UAV, Cars, Rockets and Bullets. 

Some recent and accomplished projects:

Multipurpose helicopter design and manufacturing the prototype. International validation of ITU 150mmx150mm Trisonic wind tunnel experiment facilities. 3-D flow simulation, Wind turbine rotor design, Design, stability and control of UAV’s, Rocket and Bullet Aerodynamics, External load aerodynamics, Road vehicles aerodynamics, Porous flow, Duct flow. 

Usage of the Laboratory Facilities by Students:

On average of 110 students per  year have been studying in the TRC for undergraduate lectures and project lectures and about 8 students for graduation thesis. Besides the experimental lectures, support of the place, technicians and manufacturing capabilities for project lectures is also given.
 

 

INSTRUMENTATION

Subsonic Wind Tunnels 

Gümüşsuyu Closed Circued Wind Tunnels

Test room dimensions: 110cm ´ 80cm
Velocity range: 7m/s < V < 40 m/s
Specifications: Closed circuit,
TEM balance (6 component)

 

Ayazağa LS 50´50

Test room dimensions: 50cm ´ 50cm ´ 200cm
Velocity range: 0m/s < V < 25 m/s
Specifications: Open circuit, closed test section
 
 

Ayazağa LS 50´50

Test room dimensions: 50cm ´ 50cm ´ 200cm
Velocity range: 0m/s < V < 25 m/s
Specifications: Open circuit, closed test section
 

Ayazağa Air Flow Bench

Test room dimensions : 10cm ´ 5cm ´ (20-40)cm
Velocity range: 0m/s < V < 32 m/s
Specifications: simple miniature wind tunnel for
classroom demonstration of aerodynamics
 
Experimental Techniques for Subsonic Wind Tunnels: Flow Visualization: Tuft, smoke, surface oil flow. Taking photo, video record and digital view at the computer. Visualization with laser. Pressure Measurements: Pressure transducers, scanni-valves, total, static and pitot-static pressure tubes, multimanometers, Betz manometers and micromanometers. Velocity Measurements: Constant Temperature Hot-Wire Anemometer, Electronic Pressure Gauge, LDA, PIV Force and Moment Measurements: Wall Balance with 6 component (subsonic wind tunnel), Internal balance with 3 component (supersonic wind tunnel). Acceleration Measurements: Accelerometers

Ayazağa Pipe Flow,

Nozle Apparatus and
Fan Test Rig Pipe Flow
 
 

 

Supersonic Wind Tunnels

30´ 60 Trisonic Wind Tunnel

Test room dimensions: 30mm ´ 60mm ´ 200 mm
Mach number range: 0.3 < M < 2.2
Specifications: Continuous flow
Experimental Techniques:
Flow Visualization: Schilieren and surface oil flow technique. Taking photo, video record and digital view at the computer.
Pressure Measurement: Scanni-valve, mercury manometers and total and static pressure tubes.
Force and Moment Measurements: 2 component wall type balance

150´150 Trisonic Wind Tunnel

Test room dimensions: 150mm ´ 150mm ´ 400mm
Mach number range: 0.4 < M < 2.2 (1st test section)
2.6 < M < 4.0 (2nd test section)
Specifications: Blow down
Experimental Techniques:
Angle of attack range: -4.5° < a < 8.5°
Flow Visualization: Schilieren and surface oil flow technique.
Taking photo, video record and digital view at the computer.
Pressure Measurements: Scanni-valve, mercury manometers
and total and static pressure tubes.
Force and Moment Measurements: 3 Component sting type balance

Water Channel

Test room dimensions: 970 mm x 750 mm x 6 m
Velocity range:  0.006 m/s < V < 0.14 m/s
Experimental Techniques:
Velocity measurements: Streo-PIV, 3-D LDA
Force and pressure measurements
Tin precipitation flow visualization.
Motion control with linear table

 

Machine Shop:

Model shop capabilities have been extensively increased by the purchases of a new lathe, a milling machine, a drill press, a band saw, CNC lathe, laser cutter, hot-wire cutter machine. These new and accurate machines are capable of manufacturing models to use in the experimental courses, course projects and graduation projects.

 
 
  
İTÜ Trisonic Research Laboratory

Faculty of Aeronautics and Astronautics
İTÜ Ayazağa Kampüsü
34469 Maslak/İSTANBUL

Phone: +90-(212) 285 31 46 / 116
Fax: +90-(212) 285 31 39
mailto:tam@uubf.itu.edu.tr